Alfa Laval FrontLine WideGap 100, Instruction Manual, Page: 10 / 30

Description
Multi-pass
Multi-pass sections can be created by using turning plates with 1, 2 or 3 unholed ports. The
main purpose is to change the flow direction of one or both fluids.
For some units, a partition plate is required to support the unholed ports in the turning plates. A
transition plate also needs to be added to the pack to prevent media from coming into contact
with the partition plate or pressure plate.
An example of where multi-pass can be used is in processes that require longer heating periods
if the media requires slower heating.
1. End plate I
2. End plate II
3. Channel plate
4. Transition plate
5. Turning plate
6. Partition plate
3
3 1
2
4
4
5 5 6
Figure 3. Example of a multi-pass set up
Identification of plate side
The A side of the plate is identified by a stamp with the letter A or the model name, in some
cases both, at the top of the plate (refer to image 1. below).
The WideGap unit has two possible channel configurations: wide-wide and wide-narrow. The
two plate pattern is marked R for Ridge-side image 2 and V for Valley-side image 3.
R
v
2. 3.
AXXX
1.
AXXX AXXX
Document ID Language Edition
10 Instruction Manual - Plate Heat Exchangers 3490017599 EN 2016-06